Does your heating equipment need a tune up? Looking for the newest, most affordable and cost-efficient furnace models? Then beat the cold this winter by choosing Brennan Heating for reliable heating installation and heating services. If you live in King County, Snohomish, Pierce, Lewis, Thurston, Mason, Kitsap county or anywhere in the Seattle metro area, Brennan Heating is your quality provider of Seattle heating and home comfort services. Our highly-trained and qualified heating technicians are more than happy to answer any questions you may have regarding: